CPC Subgroup Additional Only
C09K 2211/18 Metal complexes
Full Title
Chemical nature of organic luminescent or tenebrescent compounds > Metal complexes
7 direct subcodes
Child Classifications
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- C09K 2211/181 of the alkali metals and alkaline earth metals
- C09K 2211/182 of the rare earth metals, i.e. Sc, Y or lanthanide
- C09K 2211/183 of the refractory metals, i.e. Ti, V, Cr, Zr, Nb, Mo, Hf, Ta or W
- C09K 2211/185 of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
- C09K 2211/186 of the light metals other than alkali metals and alkaline earth metals, i.e. Be, Al or Mg
- C09K 2211/187 of the iron group metals, i.e. Fe, Co or Ni
- C09K 2211/188 of other metals not provided for in one of the previous groups
Top Applicants
Top 10 applicants by patent filingsfor class C09, 2013–2023, worldwide · Source: EPO PATSTAT
- LG CHEM KR 7,954
- HALLIBURTON ENERGY SERVICES GROUP US 6,584
- NITTO DENKO CORPORATION JP 6,500
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 6,490
- DOW GLOBAL TECHNOLOGIES US 6,324
- FUJIFILM JP 5,832
- MERCK PATENT DE 5,481
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 5,147
- SAMSUNG DISPLAY KR 5,105
- NITTO DENKO CORPORATION 3,584